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PREVENTIVE MAINTENANCE
Introduction
Our UPS are designed and produced for long life even under the severest operating conditions. Remember
however that they are electrical power equipment items and as such are in need of periodic checks. Besides, some
components have a life cycle of their own and must therefore be checked at regular intervals and may need to be
replaced, due to the conditions; in particular: the batteries, the fans, the electrolytic and the film capacitors.
It's very important to check the requirements and the suggestions for the installation environment given in the
“Installation manual”. Moreover, it is recommended to implement a preventive maintenance program, using the
manufacturer authorised and trained service personnel.
During the Maintenance all the electronics and the mechanicals parts will be controlled. This will improve the
reliability, maintain the UPS efficiency to the maximum level and to extend the lifespan.
The product safety preservation over the time is ensured with a preventive and regular maintenance program on the
UPS.
Only the authorised and trained service personnel can perform any maintenance operations.
Our Technical Servicing department is at your disposal to discuss the different personalised preventive maintenance
options.
Batteries
Thanks to an advanced battery care system our UPS preserve the batteries health both during charging and
discharging phase. For example an algorithm to avoid deep discharge is implemented. Anyway environmental
condition and usage affect battery life. Ambient temperature, number of blackout or outages, number of depth
discharges, frequency of charge and discharge cycles are the key factors that affect battery life. In order to avoid
unexpected behavior during a mains outage, batteries should be regularly checked and maintained by authorised
service personnel.
Fans
The Fans fitted in this UPS are speed controlled. Ambient temperature and UPS output power affect the speed. In
addition, dusty environments can make matters worse. Preventive maintenance ensures that the cooling system is
kept in perfect working order.
Capacitors
The most critical capacitors inside the UPS are the electrolytic capacitors fitted within the intermediate DC BUS and
the AC film capacitors used for input and output high frequency filtering. For our UPS we have select the best
components available on the market from well-known brands and we size them for the maximum reliability. The
expected life depends however on the usage and environmental conditions. Preventive maintenance thanks to a
periodic check of the capacitors ensures the highest level of system reliability.
